{"cve":"CVE-2022-49193","nvd":{"published":"2025-02-26T07:00:56.383","modified":"2026-06-17T05:17:20.783","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix 'scheduling while atomic' on aux critical err interrupt\n\nThere's a kernel BUG splat on processing aux critical error\ninterrupts in ice_misc_intr():\n\n[ 2100.917085] BUG: scheduling while atomic: swapper/15/0/0x00010000\n...\n[ 2101.060770] Call Trace:\n[ 2101.063229]  <IRQ>\n[ 2101.065252]  dump_stack+0x41/0x60\n[ 2101.068587]  __schedule_bug.cold.100+0x4c/0x58\n[ 2101.073060]  __schedule+0x6a4/0x830\n[ 2101.076570]  schedule+0x35/0xa0\n[ 2101.079727]  schedule_preempt_disabled+0xa/0x10\n[ 2101.084284]  __mutex_lock.isra.7+0x310/0x420\n[ 2101.088580]  ? ice_misc_intr+0x201/0x2e0 [ice]\n[ 2101.093078]  ice_send_event_to_aux+0x25/0x70 [ice]\n[ 2101.097921]  ice_misc_intr+0x220/0x2e0 [ice]\n[ 2101.102232]  __handle_irq_event_percpu+0x40/0x180\n[ 2101.106965]  handle_irq_event_percpu+0x30/0x80\n[ 2101.111434]  handle_irq_event+0x36/0x53\n[ 2101.115292]  handle_edge_irq+0x82/0x190\n[ 2101.119148]  handle_irq+0x1c/0x30\n[ 2101.122480]  do_IRQ+0x49/0xd0\n[ 2101.125465]  common_interrupt+0xf/0xf\n[ 2101.129146]  </IRQ>\n...\n\nAs Andrew correctly mentioned previously[0], the following call\nladder happens:\n\nice_misc_intr() <- hardirq\n  ice_send_event_to_aux()\n    device_lock()\n      mutex_lock()\n        might_sleep()\n          might_resched() <- oops\n\nAdd a new PF state bit which indicates that an aux critical error\noccurred and serve it in ice_service_task() in process context.\nThe new ice_pf::oicr_err_reg is read-write in both hardirq and\nprocess contexts, but only 3 bits of non-critical data probably\naren't worth explicit synchronizing (and they're even in the same\nbyte [31:24]).\n\n[0] https://lore.kernel.org/all/YeSRUVmrdmlUXHDn@lunn.ch","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/24d7ac8426306ae7ccea7f7dd612a7368fe7201d","https://git.kernel.org/stable/c/32d53c0aa3a7b727243473949bad2a830b908edc","https://git.kernel.org/stable/c/59e88a50afad7469c55804e46bf2924b9130281f","https://git.kernel.org/stable/c/9b77c8cf69a41d1e3851370aeaa04a9ea83b865c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49193","score":0.00268,"percentile":0.19032,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}